What you can check safely
Turn the unit off before cleaning user-accessible filters according to the manual. Do not open electrical panels or refrigerant lines.
Dirty filters, blocked vents or indoor fan/coil problems can reduce airflow.
Turn the unit off before cleaning user-accessible filters according to the manual. Do not open electrical panels or refrigerant lines.
Dirty filters, blocked vents or indoor fan/coil problems can reduce airflow. Other causes may be possible; a technician needs the exact brand, model and symptoms to narrow them down.
Request an inspection if the problem continues after the basic checks, repeats, shows an error code, trips power, leaks, smells burnt, or involves internal components.
This guide is general information, not a model-specific repair procedure. Error codes and user checks can differ across manufacturers and models; consult the official manual for your appliance.